The Table Shows the Political Affiliations and Types of Jobs

question 104

Multiple Choice

The table shows the political affiliations and types of jobs for workers in a particular state. Suppose a worker is selected at random within the state and the worker's political affiliation and type of job are noted. $$\begin{array}{c}\text { Political Affiliation }\\\begin{array} { l c c c c } \hline & & \text { Republican } & \text { Democrat } & \text { Independent } \\\hline & \text { White collar } & 20 \% & 7 \% & 11 \% \\{ \text { Type of job } } \\& \text { Blue Collar } & 17 \% & 19 \% & 26 \% \\\hline\end{array}\end{array}$$ Find the probability that the worker is a white collar worker affiliated with the Democratic Party.

• A) 0.07
• B) 0.38
• C) 0.26
• D) 0.57

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Definitions:

Standard Error

The standard deviation of the sampling distribution of a statistic, usually the mean, indicating the precision of an estimate.

Standard Error

A statistical measure that describes the accuracy with which a sample distribution represents a population by quantifying the variability of sample means.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, affecting the shape of the distribution.

P-values

P-values provide the probability of obtaining an effect at least as extreme as the one in your sample data, assuming the truth of the null hypothesis.